How to set the maximal number of double bonds

Hello,
I am a pharmacy student of germany and I am
testing the test version marvin skatch.
How can I configure the programm that it shows me just maximal three
double bonds in different positions. Example I create two rings
annellated and click on "single or double bonds" so it shows me then
single,1,2,3,4 and so on double bonds in different positions. But I
want to set the programm that it shows me just single, 1,2 and 3 double
bonds in different positions. So how can I set the number of double
bonds in different positions?

Best regards

Hello,

I am sorry; I am afraid I do not understand your question. Could you tell me which version of Marvin are you testing? Desktop or Applet? Operation system? Could you describe me your test step by step please? E.g., "click on "single or double bonds" " from which menu or icon?

Thank you,

Efi Hoffmann